No, Chris is saying they don't make a 57 Pro in 18x7.5 +48. The highest offset they offer is +40. (I'm not sure if that's true or not. I haven't checked.) However, 18x7.5" +48 will fit just fine. In fact that is Rishie's recomended size for 18" on a Pro.
Oh and do yourself a favor and don't run 35 series tires if you go with 18's. Your rims will be bent in no time with the roads out here. I would personally recomend 215/40/18. It gives you enough meat between the rim and the road to be safe without looking like a balloon at the same time.
Oh and do yourself a favor and don't run 35 series tires if you go with 18's. Your rims will be bent in no time with the roads out here. I would personally recomend 215/40/18. It gives you enough meat between the rim and the road to be safe without looking like a balloon at the same time.